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Examination of temporal lobe structures from Alzheimer patients reveals a specific cellular pattern of pathology of the subiculum of the hippocampal formation and layers II and IV of the entorhinal cortex. The affected cells are precisely those that interconnect the hippocampal formation with the association cortices, basal forebrain, thalamus, and(More)
The cortex of the upper bank of the superior temporal sulcus (STS) in the rhesus monkey contains a region that receives overlapping input from post-Rolandic sensory association areas and is considered multimodal in nature. We have used the fluorescence retrograde tracing technique in order to answer the question of whether multimodal areas of the STS(More)
This study identifies the neuronal types of the rhesus monkey lateral entorhinal cortex (LEC) and discusses the importance of these data in the context of the connectional patterns of the LEC and the possible role of these cells in neurodegenerative diseases. These neuronal types were characterized with the aid of Golgi impregnation techniques. These(More)
The hippocampal commissural projection to the area dentata of the mouse was studied using the retrograde horseradish peroxidase (HRP) technique. Small volumes of HRP injected into the molecular layer of the fascia dentata or various subareas of regio inferior of the hippocampus (fields CA3a-c) resulted inlabeled perikarya in the contralateral hippocampus(More)
The lectin tracer, wheat germ agglutinin conjugated to horseradish peroxidase (WGA-HRP), was injected into the entorhinal cortex in rat and monkey brains. Tracer labeling was followed in the entorhinal projection to dentate gyrus and hippocampus, i.e. along the perforant pathway. Besides labeling perforant pathway terminals in the outer two-thirds of(More)
The retrotrapezoid nucleus (RTN) is thought to regulate breathing in response to changes in blood carbon dioxide (CO(2)), and to make a vital contribution to respiratory drive, especially during sleep. However, cells in the female RTN fail to upregulate c-fos in response to low level CO(2) exposure, while cells in the male RTN have a robust upregulation of(More)
A lesion of the septum or a transection of the fimbria-fornix diminishes most, but not all, acetylcholinesterase (AChE) staining in the hippocampal formation. The residual AChE is located in the outer part of the molecular layer of the hippocampal CA1 zone and adjacent subicular field (zone 31). We report that following combined lesions of the septum and(More)
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